<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>

    <div id="app">
        <ul>
            <li v-for="(item,index) in bookList">
                <span>{{item.name}}</span>
                <span>{{item.author}}</span>
                <!-- 注册点击事件，通过id进行删除数组中的对应项 -->
                <button @click="del(item.id)">删除</button>
            </li>
        </ul>

    </div>
    <script>
        const app = new Vue({
            el: "#app",
            data: {
                bookList: [{
                        id: 1,
                        name: '<红梦楼>',
                        author: '曹雪芹'
                    },
                    {
                        id: 2,
                        name: '<西游记>',
                        author: '吴承恩'
                    },
                    {
                        id: 3,
                        name: '<水浒传>',
                        author: '施耐庵'
                    },
                    {
                        id: 4,
                        name: '<三国演义>',
                        author: ' 罗贯中'
                    },

                ]
            },
            methods: {
                del(id) {
                    console.log("删除",id);
                    // window.alert("删除", id)
                    // filter:根据条件，保留满足条件的对应项，得到一个新数组(不会改变原数组)
                    this.bookList=this.bookList.filter(item=>item.id!==id);
                }
            }
        })
    </script>

</body>

</html>